The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 18, 2014
Filed:
Jul. 18, 2011
Applicants:
Christian Hunnekuhl, Osnabrueck, DE;
Volker Gerth, Bielefeld, DE;
Inventors:
Christian Hunnekuhl, Osnabrueck, DE;
Volker Gerth, Bielefeld, DE;
Assignee:
Miele & Cie. KG, Guetersloh, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A47L 9/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A floor-type vacuum cleaner includes a housing and rollers attached to the housing that are configured to provide movement of the housing. Each roller is disposed on a roller axle so as to be rotatable. At least one of the rollers includes a rigid hub and an air-filled, rubber, resilient, damping tire. Alternatively, at least one of the rollers has a damping property and includes alternating concentric layers of rigid and flexible components, with air being disposed between at least one of the rigid components and at least one of the flexible components.